Bathtub



FIG. 1 is a perspective view taken from the top, front and left side of a bathtub showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a perspective view taken from the bottom, front and right side thereof;

FIG. 4 is a left side elevational view thereof, the view from the right side being the mirror image thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for bathtub, as shown and described. 